DHCP, DNS, HTTP, HTTPS, Email Setup

This is an example

of what your final topology should look like.

Instructions:

1. Start Packet Tracer using Realtime mode.

• Options -> Preferences
• Enable “Show Link Lights”
• Disable “Hide Device Label”

2. Configuring the DHCP Server

Add a server.

Global Settings:

· Change the Display Name to “DHCP Server”

· Set the Gateway to 172.16.0.1

FastEthernet:

· Set the IP address to 172.16.0.10

· Set the Subnet Mask to 255.255.0.0

HTTP:

· Set HTTP Service and HTTPS Service to Off

DHCP:

· Set the Default Gateway to 172.16.0.1

· Set the DNS Server to 172.16.0.11

· Set the Start IP Address to 172.16.0.100

DNS:

· Set the Service to Off

Email:

· Set the SMTP Service and POP3 Service to Off

2. Configuring the DNS Server

Add a server.

Global Settings:

· Change the Display Name to “DNS Server”

· Set the Gateway to 172.16.0.1

FastEthernet:

· Set the IP address to 172.16.0.11

· Set the Subnet Mask to 255.255.0.0

HTTP:

· Set HTTP Service and HTTPS Service to Off

DHCP:

· Set the Service to Off

DNS:

· Entering the www.cabrillo.edu Domain Name

· Enter for the Domain Name www.mapua.edu

· Enter for IP Address 172.16.0.20

· Click Add

· Entering the www.internal.com Domain Name

· Enter for the Domain Name www.internal.com

· Enter for IP Address 172.16.0.30

· Click Add

Email:

· Set the SMTP Service and POP3 Service to Off

3. Configuring the www.mapua.edu Web Server

Add a server.

Global Settings:

· Change the Display Name to “Web Server: www.mapua.edu”

· Set the Gateway to 172.16.0.1

FastEthernet:

· Set the IP address to 172.16.0.20

· Set the Subnet Mask to 255.255.0.0

DHCP:

· Set the Service to Off

DNS:

· Set the Service to Off

HTTP

· Set the both the HTTP and HTTPS Service to On

· Change the sentence, “

---

Welcome to Advance Technology Group, Opening doors to new opportunities. Mind Wide Open.” to “

---

Welcome to Advance Technology Group, public web page!” You may add other information as well.

Email:

· Set the SMTP Service and POP3 Service to Off

4. Configuring the www.internal.com Web Server

Add a server.

Global Settings:

· Change the Display Name to “Web Server: www.internal.com”

· Set the Gateway to 172.16.0.1

FastEthernet:

· Set the IP address to 172.16.0.30

· Set the Subnet Mask to 255.255.0.0

DHCP:

· Set the Service to Off

DNS:

· Set the Service to Off

HTTP:

· Change the sentence, “

---

Welcome to Advance Technology Group. Opening doors to new opportunities. Mind Wide Open.” to “

---

This is the corporate internal network!” You may add other information as well.

5. Configuring the mail.mapua.edu Email Server

Add a server.

Global Settings:

· Change the Display Name to “Email Server: mail.mapua.edu”

· Set the Gateway to 172.16.0.1

FastEthernet:

· Set the IP address to 172.16.0.40

· Set the Subnet Mask to 255.255.0.0

DHCP:

· Set the Service to Off

DNS:

· Set the Service to Off

HTTP:

· Set HTTP Service and HTTPS Service to Off

Email:

• Set SMTP and POP3 Service to On.
• Set the domain name to mail.mapua.edu
• Setup three user accounts as follows:

Users	Password
user1	datacom1
user2	datacom2
user3	datacom3

6. Configure Two Client Computers using DHCP

• 
  

Add two client computers.

Global Settings:

· Change the Display Names to “Dynamic 1” and to “Dynamic 2” respectively

· Set the Gateway/DNS to DHCP

FastEthernet:

· Set the IP Configuration to DHCP

6. Configure One Client Computers using Static IP Addressing

Add two client computers.

Global Settings:

· Change the Display Name to “Static”

· Set the Gateway/DNS to Static

• Set Gateway to 172.16.0.1
• Set the DNS Server to 172.16.0.11

FastEthernet:

· Be sure the configuration is set to Static

· Set the IP address to 172.16.0.90

· Set the Subnet Mask to 255.255.0.0

7. Configure Email Configuration for Clients

• 

8. Adding switches

• Add two switches.
• Connect the servers to one switch using a straight-through cable.
• Connect the client computers to the other switch using a straight-through cable.
• Interconnect the two switches using a crossover cable.

9. Verify connectivity

• Ping (ICMP)
• From a client computer use the Desktop Command prompt to ping the other client computers and the servers.
• Example: From the Dynamic 1 client, C> ping 172.16.0.20
• The first one or two pings may fail, but you should receive a reply on the later pings. This is due to the ping timing out while the ARP process takes place.
• Web Browser (HTTP)
• On the client computers use the Desktop Web Browser, enter the URLs of the Web Servers www.cabrillo.edu and www.internal.com.
• You should see the web pages that you created on these servers.
• Email (SMTP)
• From client computer (Dynamic 1), compose an email (from Desktop tab) to another client computer (Static). To: user3@mail.mapua.edu
• Upon sending the email, check if email was received by Static PC by clicking the email icon (Desktop tab), and clicking the Receive button after.

Please approach your instructor to verify connectivity of devices

Instructor’s Signature:

__________________________________________

10. Using Simulation Mode

Click on Simulation.

Note: To reset a simulation, click on “Reset Simulation”

Click on Edit Filters

· Choose Show All/None so that all the boxes (protocols) are unchecked.

· Select (check) the following protocols: DHCP, ICMP, HTTP, DNS, HTTPS, SMTP

Web Browser (HTTP)

· On the client computers use the Desktop Web Browser, enter the URLs of the Web Servers http://www.mapua.edu or http://www.internal.com.

· Click on Auto Capture/Play (automatically forwards the packets) or Capture Forward (must keep clicking to advance the packets)

DHCP

· Reset the simulation by clicking on “Reset Simulation”

· To view DHCP, on one of the “Dynamic “client computers using DHCP go to the Desktop Command prompt.

· To have the client computer ask for new IP address and other information from the DHCP server, enter the command: C> ipconfig /renew

Email

· Reset the simulation by clicking on “Reset Simulation”

· To view email, click on one of the client computers sending email to another client computer.

· Click on Auto Capture/Play (automatically forwards the packets) or Capture Forward (must keep clicking to advance the packets)

Hardware or Software Firewall

Get a hardware or software firewall

We highly recommend all computer users have a firewall solution. There are two ways a firewall can protect your computer and network.

Hardware firewall - A hardware firewall is a hardware device that is connected to your network. Often many home users who have a home network use their network router as a firewall solution.
Software firewall - A software firewall is a software program that you install on your computer that helps protect that computer from unauthorized incoming and outgoing data. Below is a listing of a few of the more widely used software firewall programs.

Microsoft Security Essencial

about microsoft security essentials Microsoft Security Essentials is designed to protect against viruses, spyware and other malicious software. Like most antivirus suites, including paid solutions, it does not come with a separate firewall component. Rather, it uses Windows’ built-in firewall, and that’s good enough for most purposes.